118420780 has 12 divisors (see below), whose sum is σ = 248683680. Its totient is φ = 47368304.

The previous prime is 118420741. The next prime is 118420807. The reversal of 118420780 is 87024811.

It is a super-2 number, since 2×118420780² = 28046962271616800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2960500 + ... + 2960539.

It is an arithmetic number, because the mean of its divisors is an integer number (20723640).

Almost surely, 2^118420780 is an apocalyptic number.

118420780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118420780 is an abundant number, since it is smaller than the sum of its proper divisors (130262900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118420780 is a wasteful number, since it uses less digits than its factorization.

118420780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5921048 (or 5921046 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 118420780 is about 10882.1312250864. The cubic root of 118420780 is about 491.0691357664.

The spelling of 118420780 in words is "one hundred eighteen million, four hundred twenty thousand, seven hundred eighty".